One Pokémon Trading Card Game player has pulled an incredibly rare misprinted card that's completely and utterly blank. The card game has its share of misprints and mistakes, from poorly aligned images to missing or incorrect details. Often, these cards are worth more than their "correct" counterparts, since they're so incredibly rare. But finding an entirely blank card is an especially rare occurrence, and the player isn't sure what to do with it.
Reddit takes printing errors to an extreme. Instead of having an error in its printing, the card is completely blank. The fan shared an image of the back, which looks normal and unaffected by the error, and the front, which shows nothing but a brilliant glossy white. "I've never seen anything like it," says the Redditor. They asked the Pokémon TCG community for information about the card since there isn't much about this extremely rare card error online.
The Pokémon TCG Community Provides Helpful And Silly Ideas For The Blank Card
TCG Players Agree The Card Should Be Protected
According to the comments, a blank card like this can sell for over $100 USD, as there are collectors who specialize in misprints. The comments also urge the poster to get the card graded and sleeved, both to authenticate it and to protect it from damage (which would lower its value).
The usual company used by card collectors, PSA (Professional Sports Authenticators), doesn't grade misprints, but the CGC (Certified Guaranty Company) does.
Although the comments are generally in agreement about what to do with the card, they have wildly different theories and explanations for what the card might represent. The blank card has led to countless jokes, like it being "the 'Ash's Father' trainer card" (proposed by ChaneyDesigns3D), "Misty's New Bike" (suggested by Uspresso235), and "Brock's Girlfriend" (posted by Angelirince_), all things that are notoriously missing from the Pokemon franchise.

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Several other comments allude to the old glitch from the original Red & Blue Pokémon games, saying this must be the "Missingno card," an error Pokémon that could only be found following very specific steps and caused a number of errors in the titles. Zes_Teaslong has another idea about the empty card. The Redditor says that the player has "pulled the John Cena card," making a play on another popular meme that says no one can see popular wrestler, actor, and philanthropist John Cena.
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The Pokémon Franchise Meets Yu-Gi-Oh
There are quite a few comments in the discussion that mention the card game and show Yu-Gi-Oh, and the comparisons are spot-on. EddySpagetty jokes, "It's a personal invitation card from Maximilian Pegasus to voyage to the kingdom. Good luck my friend." The comparison is even more apt when you realize that there's a card in Yu-G-Oh called Soul Prison, which was used by Pegasus to trap people's souls. The card starts out blank, and takes on the appearance of the soul it traps within it.
The closest to this concept in Pokémon TCG is the Ditto card, which allows players to use the attack of any basic Pokémon from the player's discard pile. It would be unhinged and game-breaking, but probably highly amusing, to take a misprint like this card to a real game. A blank card could theoretically be used to copy the opponent's Pokémon or last used trainer card, or to even be used as a "wild card." Even though they're not useful in battle, cards like this blank misprint make opening Pokémon Trading Card Game cards even more exciting, because you never know what you're going to get. It could be a Moonbreon, or even, like in this case, the absence of a Moonbreon.
Source: TrevSmile/Reddit, ChaneyDesigns3D/Reddit, Uspresso235/Reddit, Angelirince_/Reddit, Zes_Teaslong/Reddit, EddySpagetty/Reddit